Utilization of Low-Quality Native Grass Hay by Beef Cows Fed Increasing Quantities of Corn Grain

Chase, C. C.; Hibberd, C. A.

doi:10.2527/jas1987.652557x

Cited by 130 publications

(105 citation statements)

References 17 publications

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“…In a recent trial, low levels of corn supplementation (1 kg) fed to beef cows maintained on low-quality native grass hay (4.2% crude protein) did not cause a pronounced depression in hay digestibility but added increments of corn (2 or 3 kg) decreased digestibility of hay and cellulose and hay intake (Chase and Hibberd, 1987). Similarly, Guthrie et al (1984b) reported that steers fed a small amount (1.4 kg) of corn supplement (80% corn, 15% soybean meal)…”

Section: Supplementation Of Grazing Cattlementioning

confidence: 99%

“…Consequently, the chemical composition of native rangeland averages 32 to 38% ~rude fiber, 2~5 to 6% crude protein, .29% calcium, and .05% phosphorus for the months of November through February (Gallup and Briggs, 1948;Nelson et al, 1952;Waller et al, 1972;Chase and Hibberd, 1987 (Van Soest, 1982). Soil fertility is affected by rainfall, amount and intensity of use and stocking rates.…”

Section: Native Grass As a Forage Resourcementioning

confidence: 99%

“…Thus, cows grazing dormant native grass are typically deficient in protein due to the low crude protein content (< 4% crude protein) of the available forage (NRC, 1984;Waller et al, 1972). To Cereal grains, such as corn, contain large quantities of starch which decrease cellulose digestibility and forage intake (Chase and Hibberd, 1987). Under these circumstances, the overall energy status of the cow may not be improved.…”

mentioning

confidence: 99%

“…In addition, soybean hulls and corn fiber provided increased_ fiber digestion compared to oat hulls or cottonseed hulls. It is possible that highly digestible fiber sources may not actually be more digestible compared to corn, rather it is possible that these fibrous energy sources do not cause the negative associative affects common when supplementing with high starch feeds such as corn (Chase and Hibberd, 1987;Horn and McCollum, 1987).…”

mentioning

confidence: 99%

“…Kane et al (1959) Supplementation with high starch energy feeds may also create a nitrogen limitation or provide a preferred substrate compared to the available forage (Chase and Hibberd, 1987;Horn and McCollum, 1987). (1964) found no significant differences in dry matter or crude fiber digestibilities when feeding soybean hulls with hay in varying ratios (1:1, 2:1 or 3:1).…”

mentioning

confidence: 99%

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Intake and digestibility of low-quality native grass hay by beef cows supplemented with graded levels of soybean hulls2

Martin

Hibberd

1990

Journal of Animal Science

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Section: Supplementation Of Grazing Cattlementioning

confidence: 99%

Section: Native Grass As a Forage Resourcementioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Intake and digestibility of low-quality native grass hay by beef cows supplemented with graded levels of soybean hulls2

Martin

Hibberd

1990

Journal of Animal Science

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Nutrition and Reproduction in the Beef Cow

Olson

Bailey

Duncan

et al. 2021

Bovine Reproduction

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Intake, digestibility and rumen dynamics of neutral detergent fibre in cattle fed low-quality tropical forage and supplemented with nitrogen and/or starch

Souza

Detmann

Paulino

et al. 2010

Trop Anim Health Prod

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The objective of this work was to evaluate the effects of nitrogenous compounds and/or starch supplementation on the intake, digestibility and rumen dynamics of neutral detergent fibre (NDF) in cattle fed low-quality tropical forage. Four crossbred heifers (Holstein x Zebu) with a body weight 231.9 +/- 15.5 kg and fitted with ruminal cannulae were used. The forage fed to the animals consisted of low-quality signal grass (Brachiaria decumbens Stapf.) hay, with an average crude protein (CP) level of 51.6 g/kg, on a dry matter (DM) basis. Four treatments were evaluated: control, without supplementation; supplementation with nitrogenous compounds (CP of the roughage was raised to 100 g/kg), on a DM basis; supplementation with starch at a ratio of 200 g/kg DM of roughage; and supplementation with nitrogenous compounds and starch as described above. A mixture of urea, ammonium sulphate and albumin was used as a source of nitrogenous compounds at a ratio of 4.5:0.5:1.0. The experiment was carried out according to a 4 x 4 Latin square design in a 2 x 2 factorial arrangement. There was a positive effect of the nitrogenous compound supplementation on the DM and NDF intake (P < 0.01). In contrast, starch supplementation decreased forage intake (P < 0.10). Nitrogen supplementation increased the digestibility coefficient of DM and NDF (P < 0.05). Supplementation with nitrogen and starch together increased the microbial assimilation of nitrogenous compounds in the rumen (P < 0.05). We observed that nitrogen supplementation increased the estimated weighted degradation rate of NDF by 14.8%, whilst starch supplementation decreased this rate by 32.5%.

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Utilization of Low-Quality Native Grass Hay by Beef Cows Fed Increasing Quantities of Corn Grain

Cited by 130 publications

References 17 publications

Intake and digestibility of low-quality native grass hay by beef cows supplemented with graded levels of soybean hulls2

Intake and digestibility of low-quality native grass hay by beef cows supplemented with graded levels of soybean hulls2

Nutrition and Reproduction in the Beef Cow

Intake, digestibility and rumen dynamics of neutral detergent fibre in cattle fed low-quality tropical forage and supplemented with nitrogen and/or starch

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